Home / 20,480.32-28,253.71-16,719.03

Finding the Fourth Proportional to 20,480.32, 28,253.71 and 16,719.03

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Solution

The fourth proportional to 20,480.32, 28,253.71 and 16,719.03 is: 23,064.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,480.32 : 28,253.71 = 16,719.03 : x
  2. Step 2: Convert to fraction form
    20,480.32/28,253.71 = 16,719.03/x
  3. Step 3: Cross multiply
    20,480.32x = 28,253.71 × 16,719.03
  4. Step 4: Simplify right side
    20,480.32x = 472,374,400.24
  5. Step 5: Solve for x
    x = 472,374,400.24/20,480.32
  6. Step 6: Final answer
    x = 23,064.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.